Headlight adapter system

Abstract

A one-piece headlight adapter, and a two-piece headlight adapter system, is used to connect the existing vehicle headlight controls and power supply with a snowplow wiring harness. An adapter only connects the controls and power supply for one headlight to the wiring harness. Two adapters, one for each headlight, create an adapter system. The adapter system allows the vehicle operator to control the snowplow headlights from the inside of the vehicle. One version of an adapter is a three-component adapter that includes one connection to the vehicle headlight, one connection to the headlight controls, and one connection to the wiring harness. Another version of the adapter is a five-component adapter that includes high and low beam connections to the vehicle headlight, high and low beam connections to the headlight controls, and one connection to the wiring harness. In each version, the connections of the adapter include a connection to the common ground which ensures a fixed potential on which the snowplow headlights operate.

What is claimed is:  
     
       1. A wiring system for alternatively controlling snowplow headlights and vehicle headlights by operation of a vehicle headlight control system, the wiring system comprising: 
       a wiring harness with a headlight selector switch coupled to the snowplow headlights;  
       a first adapter coupled to an existing right vehicle headlight, existing right vehicle headlight controls, and a wiring harness such that electrical signals corresponding to a high beam out, a high beam feed, a low beam out, a low beam feed and a common ground are provided to the wiring harness by a single connector; and  
       a second adapter coupled to an existing left vehicle headlight, existing left vehicle headlight controls, and the wiring harness such that electrical signals corresponding to a high beam out, a high beam feed, a low beam out, a low beam feed and a common ground are provided to the wiring harness by a single connector.  
     
     
       2. The wiring system of  claim 1  wherein the first adapter is identical to the second adapter. 
     
     
       3. The wiring of  claim 2  wherein the first and second adapters are three-component adapters. 
     
     
       4. The wiring of  claim 2  wherein the first and second adapters are five-component adapters. 
     
     
       5. The wiring system of  claim 1  wherein the headlight selector switch is a predetermined automatic switch. 
     
     
       6. The wiring system of  claim 1  wherein the headlight selector switch is a manual switch.